Since SAS/STAT software is a part of the SAS System, this book assumes that you are familiar with Base SAS software and with the books SAS Language Reference: Concepts and the Base SAS Procedures Guide. It also assumes that you are familiar with basic SAS System concepts such as creating SAS data sets with the DATA step and manipulating SAS data sets with the procedures in Base SAS software (for example, the PRINT and SORT procedures).